Lubricating nozzle



oct. zo, 1936. F H, EHNTS 2,058,219.

LUBRICATING NOZ ZLE Filed Feb. 5, 1936 ATTORNEY Patented Oct. 2o, 1936 r i 2,058,219

UNITED STATES PATENT CFFICE LUBRICATING NOZZLE B S g U Fred. Henry Ehnts, Philadelphia, Pa., assigner of i...

one-half to Franz Karly Schneider, Philadelphia, Pa.

Application February 5, 1936, serial Ne. 62,430 4 anims. (o1. 28s-,161)

My invention relates generally. to greasing or Fig. 1 represents on a reduced scale the nozzle lubricating apparatus and more particularly to attached to a grease gun. improvements in back-pressure indicating nozzles Fig. 2 represents an end view of the nozzle. through which grease is discharged'into bearings. Fig. 3 represents a longitudinal sectional view 5 One of the objects is to provide a nozzle that of the nozzle. 5

is readily applied to the filling vent of a bearing Referring to the drawing in which like referfor the purpose of filling the bearing with the reence characters indicate like parts, I is a length quired quantity of grease at a predetermined and of metal tubing that may be pressed straight or a desirable operating pressure. In the specialized angled and which is attached at one end through field of bearing lubrication, the practice has been a universal joint 2 to la metering or measuring l0 heretofore to inject the grease into a bearing grease gun.3. At the other end the tube I engages under pressure without a means of ascertaining threadedly I'with'the cap 4 which in a manner whether the pressure is adequate or not. Not insimilar to a ferrule engages threadedly with the frequently the zealous operator in a spirit of exorifice element 5'. The cap 4 is perforated with cess caution fills the bearing with grease under a plurality of holes 5, constant in diameter and 15 too great a pressure, thus expressing a faulty ludistributed uniformly on a. circumference concenbricating technique that may result in heating tric with the external peripheryv of the cap 4'. the grease excessively and cause the bearing to The orice element 5' approximates in shape and run hot and to become irreparably damaged. contour a truncated hollow cone with its smaller My invention avoids the hazards of direct presopening 6 adapted to enter for a short distance sure greasing by indicating in a visible manner the filling vent I of the bearing housing 8. The when the bearing is filled with the required quanbase or the larger opening 9 of the orice element tity of grease under a proper pressure. 5 is threaded to engage the cap 4. Over the tube Another object of my invention is to provide a I and bearing on the cap 4 is the perforated washnozzle that will indicate to the operator any irer I0, the holes II of which are distributed on a 25 regular or unanticipated obstruction existent in circumference that coincides with a similar cirthe bearing that may be caused by solidified cumference on the cap 4 but the diameters of grease 0r Other aGtOrS- 51101116. the bearing really which vary slightly between close limits. The require greasing and, nevertheless, the nozzle exwasher lo can be rotated freely about the tube I pels grease from its rear surface when the gun and, accordingly, can be set in an indefinite num- 30 discharges grease into the bearing, the operator ber of positions relatively to the perforated cap is immediately apprized of a defective condition 4, ranging from a position in which all of the in the bearing that may be imputable to a numperforations of the cap 4 are closed to a position ber of causes. in which all of the aforesaid perforations are A further object of my invention is to provide open. The lock nut I2 threaded to engage the 35 a nOZZle that Can be readily adjusted to serve as tube I serves to hold securely the washer I0 in any a direct high pressure discharging nozzle to be predetermined relationship with the cap 4. attached to a pressure gun of either the continu- A thin walled cylindrical tube I3 is fitted snugly ous or intermittent feeding type. into the smooth bore of the threaded tube I and For the purpose of illustrating my invention I is adjustable in that its end IA can be advanced 40 have shown in the accompanying drawing forms toward or Withdrawn from the smaller end of the thereof which are at present preferred by me, orifice element 5. If thedistance A is decreased since the same have been found in practice to their the beck Pressure et Which the eXCeSS grease give satisfactory and reliable results, although it is extruded from th? Pearmg s is Increased; and is to be understood that the various instrumen, if the distance A 1s mcreaseds thend the texcess 45 talities of which my invention consists can be ll'leeaglpgssed bearmg exu es a a' re' .Vanouly grange@ and Organized and that my 'Ihe manner in which my device can be utilized mvenmon 1s not .hmited to the reclse arralge' becomes obvious when its operation is more fully ment and orgamzation of the mstrumentalities described The grease gun 3 is of the metering 50 as herein ShWn and descnbed' or measuring type and with every release of its My invention relates to several other novel featrigger a definite quantity of grease approximatetures of construction and advantage appearing aS 1y .07 oz., is discharged, as indicated by the solid hereinafter described and claimed in connection arrow, through the orice element, opening 6 into with the accompanying drawing in which: the filling vent 'I of the bearing 8. For greas- 55 ounces along the paths indicated by the broken. arrows in Fig. 3 through the perforations 5 and' Ii, indicating immediately to the operatonA that therbearing 8 has been correctly and adequately greased. The universal jointj'tjattaclnng': thej nozzle to the gun 3 enablesthe operator 'to apply grease to bearings that are situated in awkward or comparatively inaccessibleplaces; u p

Should the operator desire, he can quickly re.-

aimanner, that the; perforations areclosed, and proceed to use the nozzle on-any type. of gun: as

a pressureguna. Y

Whilefthe.- construction as shown;and described is the preferred embodiment of my deviceynever.-A theless the same may be modified in detailA withoutdeparting` from the spirit and theiscope of'` the invention as defined in the annexed? claims.

Having thus described my invention; I claimv asnew and desire to secure by` Letters Patent:

1. A. nozzle comprising an'orice, .element inz combination with a tube in adjustablel relation.- shipwith said orice element, an perforated cap adapted to engage with said orifice element, a delivery tube adapted to engage with said perforated cap, a perforated washer and a lock nut adapted to engage with said delivery tube.

2. A nozzle adaptable to -a metering gun comprising an orifice element in combination with a tube in adjustable relationship with said orice element, a perforated cap adapted to engage with said orice element, a delivery tube adapted to engage With said perforated cap, a perforated u washer and a lock nut adapted to engage with said delivery tube.

3;; Alnozzle adaptable to -a metering gun serving the function of indicating excessive pressure of grease ina. bearing lubricated by the said metering gun and. comprising an orice element in combination' with a tube in adjustable relation- `shipzwitli said orifice; element, a perforated cap adapted to engage with said orice element, a lease the lock nut I2, rotate the Washer IU in such' delivery tube adapted to engage with said perforated.l cap., a4 perforated` washer, andzal lock.'- nut adaptedito. engage: with.l said` delivery tube.

4; A. nozzle.- adaptable to a pressure gun com prising: arrorifice.- elementv inl combination with atubeiniadjustahle; relationshipl with. said orifice e1ement, a .perforatedcapsadapted to engage with said; orificev element, ai delivery tube adapted .to engage with. said' perforatedv cap; a perforated washer-andial lock. nut adapted. to: engage with said: delivery tube-1v and rto close said perforated cap:

FRED:.HENRY EHNTS. 

